Sharpening apparatus



Aug. 1?, 1948. R MATTER 2,447,418

SHARPENI'NG APPARATUS Filed April 21, 1944 I 6 Sheets-Sheet l INVENT OR. 065? 5 MATTE/Q 7 a, 7%RA/EY Aug. 17, 1948. R. E MATTER SHARPENING APPARATUS 6 Sheets-Sheet 2 Filed April 21, 1944 INVENTOR. 206EPNA77 ATTORNEY 7, 1948. R. E. MATTER 2,447,41

SHARPENING APPARATUS Filed April 21, 1944 6 Sheets-Sheet 3 INVENTO EOGEQE/Y/ITTEE Aug. 17, 1948. R. E. MATTER I 2,447,413

SHARPENING APPARATUS Filed April 21, 1944 6 Sheets-Sheet 4 1N VEN TOR. E065? 61/747758 AT TOENEY R. E. MATTER 2,447,418

SHARPENING APPARATUS Aug. 17, 1948.

Filed April 21, 1944 s Sheets-sheaf. 5

lll

' .T/VVE/VTOI? wa -my Aug. 17, 1948. R. E. MATTER SHARPENING APPARATUS Filed'April 21, 1944 6 Sheets-Sheet 6 QRQQ skk INVENTOR. eaaaei/v/lmfe ATTORNEY Patented Aug. 17, 1948 SHARPENING APPARATUS Bo s! I3- Metter fil i N- essi n' rl by mes ie assignments. to merican, O tical Com. D y w brifl e. -i a volu tary ss ciation A p ication April-.21. 1944, Serial No. 532.087

7 Claims. (01. 51-55 inv n ion r lat to on ng 0 sharpenin mes iees end has part cula e er e o. rea-- rgtus for sherpening blades for mierotomes or the 1112s.

ipventionrelates to ant er-ewe 3 t pe se fo th i t e a p i atio of A n sar, ilede elis 19 .2. S r e N 5 fl is ed a Pat nt Number- 2 .55 d t J ne 94. and to new and improved features for an apparoi hetyo set th in at app i t on obi e of the invent o o ovide a n w one impro ed elemns mecha ism for the plane operating me on whicitwiil provide better control nd whi h will oper e in e d f h 1 ei ,.e pre sure.- I

A otl ler object or the. invention is to provide new d. merov d me s. where y the p ssu of. h m dem the sha n n m m er ma be controlled nde e d nt f h d m in mechie Another Witch o th i io i to p d nswe id improv me n or u tic ll st p nine he sharpening acti n Another object of the. invention is to provide nd mp o mec n sm for e i h hetpeni ie nera on w ch om es a rd awtic vzilye which is controlled-electrically.

Another object of the invention is to provide new eud mmio ed m ans. for s p i g he b ad Qoeretin a paratus wi h he blad r is d fr m he 1 mm m m other objects and advanta es. of theinvention willheeq ne etppar'ent from the following descrip., me. t ken. on tion. i h companyin drawing s. It will be understood that many cheng e maybe mode in the details of. constructier; and, arrangement, of parts without departing from the spirit of the, invention as expressed in thea ecompanying claims. I, therefore, do. not ishto braim ed bathe e act tai s of c ns u 2 ar n em nt of portsv ho n. and. described as the preferred form has been shownby W o i lustration on y- 7 Refer in Q-fihfi. d awi Fig. 1 is a. side view, partially. in section, of on apparatus.em d i ihe nve t on;

Fig.2. is a top or planview thereof;

El e-,3 is, e ec ioneiview ta en on line 3...-3. ofi ie. Zieokineinohe ection of the-arro s;

Fig-.4, a. ectional view. tak n n" e 4.74 of Fig. 3 l ool;:ing.in, the direction of the arrows;

is. a diag ammat c. liustr i nshowine t e. posi Vesessum d b the ade;

Figg fi is a sfiqtionol, view. taken QI =-1ine,B-5 OLEie-Z. .o. ki.. .n. the direction of the ar ows;

Fig, 7 a. seotionel View takenon line 7--.-'!'= of Fig, 6 lookingin the direction of the arrows;

Fig. 8. is a sectional view taken-on line B -5. of.- e .v lo in in thedireoti nof the arrows;

ieis a s e i al vi w taken on line-e e of: Figlooking n the dire ion of the arrows;

Fig. 10 is a. sectional view taken. on-line iQ-Jtt of Fig. 4 looking in the direction of the arrows;

Fig, 11- is sectionalv view taken on 1ine;ll-.- l-lof Fig. 10 looking in the direction of the arrows;;.

Fig. 1 2; is a sectional view taken,- Orrline; l2-l 2 0t Fig. 10 looking in the direction of the arrows;

Bis. 3-15 a aeromrnet c view-oi t e hydraulic systemforoperating; the-apparatus Eie- It is atop v ew of the mechanism tor stoh--- ping. he l e iii-raised posit on; and

Fig. 15 is a sectional view taken on line;- id -15: Fig. ldlooking in the direction of the arrows;

;t .ev apparatus sh wn comprises a. hydrauiio o rce! tor ontain g a. .su-pp i'zof-e.fliridz. Adr- J'aeent the member I is the, support 3:which may: be a; table,v bench or-other.form of'support which these .trecksQ and were positioned the rollers It which are movable err-said track to thereby movethe carriage 12. be moved-longitudinally on the rollers H espreviously described and is motivated by means of" the hydraulic cylinder I' 3 containing a piston.

The carriage |-2 is provided with adjusting screws M adj ecen-t the opposite ends thereof for supporting the sharpeningor honing plate sup,- port i5: which carries the honing or sharpening plat membe it; It. will b noticed that at. e endthe member [5 is supported by one adjusting.

screw I41 whereas. the opposite, end, is supported by a pair ofsuchscrews I4.

d i fi n theopp-osite ends of the, plate were.

providedthelubricant reservoirs l 1. and] 8... These reservoirs. are. filled. With-2., lubricating solution. such. a a, solution oiw-ater and glycerine, with) the solution comprising approximately 10%. glyc erine and artist. inhibitor.

It, will, be noted that these reservoir acre pro.

vided. Withthe inclined faces..'i.9. and. Zdrespectively. These inclined faces l9=zand--2il.a,re providedz to, allow thev lubricant to flow on to th surfer-G .Qithe plate.- at-the-end or each: trokes.-

The carriage i2 is adaptedto" 3 Because of these inclined faces a greater lubrication is obtained.

From the pump 1 the fluid from the hydraulic tank I flows through the pipe 2| to the flow valve 22 and to the pressure regulating valve 23. From .the pressure regulating valve the fluid flows to the pressure gauge 24 and reverse valve 25 from which it flows to the blade oscillating valve 25 which serves to oscillate the blade 21 and applies the necessary pressure upon said blade as hereinafter described. I

When the blade has been oscillated the fluid flows through the flow regulation valve 22 and pipe 21a to the reverse valve 28which is attached to the blade oscillator 26 from which'it flows to one end of the piston i3 to operate the carriage as previously described.

The pipe 29 connects the exhaust end of the p ston to the reverse valve 25 from which the exhaust pipe 30 returns the flow to the tank I.

The blade oscillating mechanism 26 consists of the chamber 3| containing the rotor or vane 32 (see Figs. 8 and 9). The pipes 33 and 34 which are connected with the chamber 3| act alternatively as exhaust and pressure lines. The needle valves 35 and 3-6 are provided to dampen the contact of the blade with the surface of the plate It. These valves 35 and 36 are adjustable to adjust the exhaust flow to the lines 33 or 34 from the chamber 3|.

In the chamber 3| is provided the head 31. When the rotor 32 is in the position shown in Fig. 9 the line 33 will serve as a flow or pressure line to supply fluid to the chamber and the line 34 will serve as an exhaust line to exhaust the fluid from a the chamber. When the rotor 32 is in reverse position then the line 34 will serve as a flow or pressure line and the line 33 as an exhaust line. With the valves 35 and 3B the rate of exhaust can be actually controlled to regulate the damping mechanism of the blade on the plate I6. The exhaust pipe 38 is provided to return to the tank I any hydraulic fluid which may escape from the chamber 3|. The channel 39 is provided surrounding the rotor shaft 40 to receive this escaping fluid and conduct it to the pipe 38.

The main control 4| is connected into both the circulating system for the hydraulic pressure and also the main electric circuit so as to enable the operator to simultaneously control both and thus stop and start the entire machine. This main control 4| includes a main control handle 41 which operates both a valve 36 controlling the hydraulic pressure and a switch for opening the main line electric current. The main control handle 4'! is ordinarily operated automatically to stop the running of the machine and is operated manually to restart the operation of the machine. The valve 46, as shown in Fig. 13, is in the exhaust line 42 from the reverse valve 25; and when the valve 48 is closed by movement to the dotted line position shown in Fig. 13, further operation of the rotor 32 and the hydraulic cylinder I3 is stopped. The handle 41 is moved manually against the action of the spiral sprin 48 to close the main electric circuit and to open the hydraulic line 42 to the exhaust; and is retained in this position against the action of the spring 48 by an armature controlled latch 44. This latch 44 is not only electrically operated by its armature to release the handle 51 but may also be operated manually by the emergency push button 45 to release the handle 41. 7

For automatically timing the running cycle of the machine the automatic timing device or clock 49 is provided. The time controlled circuit closing device 49 comprises a conventional clock mechanism having a manually set switch arm 49. As shown, the switch arm 49A is interposed in the electric circuit between the intermittently operated, normally open switch 50 associated with the blade oscillating valve 26 and the main controlling means M for the normally closed switch 5|.

.Thi timing device 49 is connected in series (see Fig. 13) with the microswitch 50 (which switch as explained below is closed during only one period of the cycle of operation of the machine) and with the solenoid 43 which operates the armature 44 and releases the handle 41 energized by the spring 48. This simultaneously closes the valve 46 and opens the switch 5| (see Fig. 13). The main line circuit supplies current to an electrical motor 53 provided with the usual choke coil 52;

' The arrangement for oscillating or reciprocating the blade in a direction perpendicular to the direction of movement of the plate is comprises the motor 53 which rotates the fly wheel 54 and pinion 55 which drives the gear 56 which drives the pitman 51 through the crank bearing 58. As illustrated by Fig. 12 of the drawings the crank which is jcurnalled in the pitman 51 is slightly offset with respect to the bearing 58 and therefore as the crank is rotated bythe gear 56, the pitman 51 is caused to oscillate due to the movement of the crank. The member 59 is fastened to the oscillating shaft 60 by the set screw BI and thereby oscillation of the oscillator 51 causes reciprocation of the shaft 60 and blade.

The blade 21 is supported by the retainer 62. The key 53 and screw 54 engage openings in opposite ends of the blade 27 to retain the blade in operative position relative to the holder 62.

The holder 62 is provided with the shaft which extends through an opening in the shaft 66 and is held therein by means of the screw 61 which is threaded into the threaded portion in the shaft 65. The shaft 66 and oscillating shaft are each formed at their engaging ends with suitable clutch faces to effect driving connection therebetween. The pin 68 on the support 62 fits into the hole 69 in the shaft 68 and allows only enough movement for the blade to firmly engage the plate Hi.

In Figs. 14 and 15 is shown the mechanism for permitting stopping of the blade movement only when the blade is raised from the sharpening member Hi. This comprises the rotatabl rim 10 having the cam ll thereon adapted to engage the cam roller or rider 12 which is retained in position by the spring 13. The roller or rider I2 is mounted" on the arm 14 of the microswitch and the pin 15 is provided beneath the arm 14 to operate said microswitch. The roller 12 and cam H are in engagement only on the upstroke of the cam thereby preventing the stopping of the machine with the blade in contact with the sharpem ing member.

From the foregoing it will'be seen that I have provided simple, efiicient and economical means and advantages of the invention.

Having described my invention, I claim: 1. In a device of the character described, a sharpener member, a blade holder, mechanism operated by fluid pressure for effecting relative common control member having starting and stopping positions associated with the two mechanisms for stopping and starting both said mechanisms, said control member being biased toward its stop position.

2. In a device of the character described, the combination as set forth in claim 1 including a releasable trip for maintaining the control member in its start position.

3. In a device of the character described, a sharpening member, a blade holder, means including a fluid operated servo-motor for oscillating said blade holder relative to said sharpening member to bring the opposite sides of the blade into operative relation therewith, means comprising a cooperating piston and cylinder for effecting relative reciprocatory movement between the sharpening member and the blade holder, and a separate control valve actuated by the oscillation of said blade holder for reversing the direction of movement of the piston in the cylinder therefor.

4. In a device of the character described, in combination with a sharpener plate, mechanism for oscillating a blade from one operative position relative to said sharpener plate to another operative position including an oscillating member mounted to extend transversely of the plate, a blade holder pivoted to said oscillating member on an axis substantially passing through the blade and normal to the axis of the oscillating member to permit the blade to accommodate itself to the surface of the sharpener plate on successive oscillations of the member, and a stop means extending between and cooperating with the member and blade holder for limiting the pivotal movement of the blade holder relative to the oscillating member and plate.

5. In a device of the character described, an elongated sharpenin plate mounted on a bed for endwise reciprocation relative to the bed, motor operated means for reciprocating said plate, a support extending transversely over said plate and mounted on said bed, a blade holder mounted on the support for oscillatory and reciprocat-ory movement, means for oscillating the blade holder for alternately presenting opposite sides of a blade to the sharpening plate, and a variable speed mechanism including a motor operated pitman connected to the blade holder for positively reciprocating the blade holder lengthwise of the support and transversely of the sharpening plate independently of the means for oscillating the blade holder so that a blade carried by the blade holder may be caused to selectively traverse the same or different surface areas of the plate on repeated reciprocations thereof.

6. In a device of the character described comprising a sharpener member and an associated blade holder, power driven mechanism for imparting relative movement between the sharpener member and blade holder for sharpening a blade on said member, an oscillatory blade flipping means connected to said blade holder for swinging opposite sides of a blade alternately into and out of contact with said sharpener member, power control means connected to the power driven mechanism and to the blade flipping means and movable in opposition to a resilient pressure to an operative position for initiating the supply of power to said mechanism and said flippin means, releasable holding means for maintaining said power control means in said operative position, and a power stop controller connected to said holding means and to said flipping means at a position thereon so as to automatically release said power control means to interrupt the supply of power and stop the blade holder with the blade out of contact with said sharpener member.

7. The structure recited in claim 6 wherein said power stop controller includes clockwork operating means which becomes automatically effective after a predetermined operating period for allowing said power stop controller to interrupt said supply of power and stop said blade holder with the blade out of contact with said sharpener member.

ROGER E. MATTER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS FOREIGN PATENTS Country Date France May 13, 1914 Number Number 

